Pumping mechanism.



G. W; DOPKINS.

PUMPING MECHANISM.

APPLICATION FILED MAR. 26, 191i.

Patented Feb. 9, 1915.

2 SHEETS-SHEET 1 wwl nven tor Attorneys THE NORRIS PETERS 20..PHuiU-LITHKL. WASHING I'ON, D i

G. W. DOPKINS,

PUMPING MECHANISM.

APPLICATION TILED MAR. 26, 1914.

Patented Feb. 9, 1915.

2 SHEETSSHEET 2v Witneses Attorneys GEORGE W. DOPKINS, OF MORRIS,MINNESOTA,

PUMPING MECHANISM.

Application filed March 26, 1914.

To aZZ whom it may concern Be it known that I, GEORGE WV. DoPKiNs,

a citizen of the United States, residing at Morris, in the county ofStevens and State of Minnesota, have invented. a new and useful PumpingMechanism, of which the following is a specification.

The present invention relates to improvements in pumping mechanism, oneobject of the invention, being the provision of an air compressingmechanism controlled due to the pressure within the tank for movementinto and out of engagement with the fly wheel of the explosion engine,thereby insuring the proper amount of air stored for operating airbrakes, pumping pneumatic tires and operating a pneumatic jack.

A. further object of the present invention, is the provision of a novelmounting of compressor mechanism to the frame or chassis of a motor car,whereby the same will be swung into and out of engagement with the flywheel of an explosion engine, there being provided a pneumatic actuatedmeans operable from the compressed air tank and due to a predeterminedamount of pressure therein for moving the frame away from the fly wheelor permitting the frame to move downwardly in engagement with the flywheel.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope ofwhat is claimed without departing from the spirit of theinvention.

In the drawings-Figure 1 is a top diagrammatic view of a motor carchassis with the present invention in operable relation thereto,portions of the same being broken away and other portions being shown insection. Fig. 2 is an enlarged detail view taken from the front of thefly wheel showing the compressor mechanism in operable relation thereto.Fig. 3 is an enlarged detail sectional view of the compressor actuatedmeans for controlling the position of the compressor mechanism relativeto the fly wheel. Fig. 4 is an enlarged detail sectional view showingthe connection of the compressing cylinder to the carrying frame. Fig. 5is an enlarged detail view of apnea Specification of Letters Patent.

Patented Feb. 2, 1915.

Serial No. 827,446.

I inatic jack structure used in connection with the present compressedair system.

Referring to the drawings, and particularly to Fig. 1, the numeral 1designates the frame or chassis of the motor car, and 2 indicates thecrank shaft of the explosion engine (not shown). A fiy wheel 3 isoperably connected to the crank shaft as usual. Two pivoting ears orlugs 4 are carried by one side of the frame upon the inner face thereof,and as particularly shown in Figsil and 2, a rod forming the hingingmeans between the lugs 4c and the frame 6, said frame being so disposedas to be normally held in a plane above that of the crank shaft, therebeing pro vided a pin 7 which is operably connected to the piston rod 8of the piston 9 which is mounted for reciprocation within the cylinder10, said piston 9 being moved inwardly due to the spring 11 so that theframe 6 will be held downwardly, the purpose of which will presentlyappear. The cylinder 1.0 is also swingingly connected by means of theapertured lugs 12 and the rod 13 to the lugs 14. of the frame 1. Thuswhen the cylinder 9 is pneumatically actuated as will presently appear,the same will be propelled against the action of the spring 11 and willelevate the frame 6 and the parts carried thereby, the decrease of airpres sure permitting the spring 1]. to operate the piston 9 andconsequently permit the frame 6 to have its free end moved downwardly.

A shaft 15 is journaled in the outer free end of the frame 6, and fixedthereupon is a friction wheel 16, which is disposed to be moved into andout of engagement with the periphery of the fly wheel 3, the same whenin engagement with the periphery of the fly wheel 3 being rotated so asto operate the worm gear 17 and through the meshing gear 18 thereof alsojournaled upon the frame 6, pperate the gear 18 and through theeccentric pin 19, the piston rod 20. Thus the plunger 21 *ithin thecylinder 22 will be reciprocated and as this plunger 21 and the cylinder22 constitute the air compressor, air is properly compressed thereby,the pivoting pin 23 being a means to swingingly connect the cylinder 22to the frame 6, so that the frame will oscillate as the gear 18 isrotated and the proper reciprocating action is imparted to the plunger21.

A pipe 24 is led from the cylinder 22, and

by means of the flexible connection 25 is connected to the pipe 26,there being disposed in the pipe 26 a check valve 27 This pipe 26 leadsto the pipe 28 and consequently the compressed air is supplied to thestorage tank 29. Thus, when the friction wheel 16 is in contact with therotating fly wheel 3, air is being compressed by the compressor 22 andis supplied to the reservoir or tank 29. In order to provide a means forconveying the air to the cylinder 10, so that when a predeterminedpressure has been stored in the tank 29, the wheel'16 will be movedupwardly and out of engagement with the fly wheel 3, the extension 28'of the pipe 28 is in communication with the cylinder 10 through the pipe30 and the flexible connection 30*. Also in communication with theextension 28 is a pipe 31, which carries the hose connection 32 with thevalve 33, this being provided so that the forward tires of the motor carmay be infiated when found necessary.

Leading from the pipe 28 adjacent the tank or reservoir 29, is a pipe34, which through the flexible or hose connection 36 and the valve 37provides a means for directing the air and the pressure to pump the reartires of the automobile. By this means, the air in the tank 29 may beemployed to inflate the tires. In order that the air may also beemployed to operate brakes upon the car, a pipe 38 is led from the pipe28 and is controlled by the valve 39, said valve 39 being controlledmanually through the link 40 and the foot lever 41 so that the air maybe directed from the tank 29 into the cylinder 42 to propel the pistonor plunger 43 and through its rod 44 and the arm 45, rock the shaft 46.This shaft 46 is provided with the two arms 47 which through the rods orlinks 48 extend rearwardly to actuate brake bands (not shown) to controlthe rear wheels. In order to further provide a means for utilizing thecompressed air stored within the tank 29, the jack structure shown inFig. 5 is employed, the same consisting of the base 49 and the closedcylin- Copies of this patent may be obtained for der 50, which has ledtherefrom, the pipe 51 having the manually controlled valve 52, thispipe 51 being adapted to be connected to either one of the valveconnections 33 or 37 so that air may be supplied from the tank 29 intothe cylinder to elevate the plunger 53 and its stem 54 which upon itsfree end is provided with the aXle engaging member 55; Thus it will beseen that the motor car may be jacked by utilizing the present structurein connection with the compressed air stored in the tank 29.

What is claimed is:

1. An automatic pumping machine, including a support, a frame swinginglyattached to the support, a swingingly mounted pneumatic cylinder alsoconnected to the support at one side of the frame, a plunger mountedtherein and pivotally connected to one side of the frame for swingingthe frame, a spring for operating the plunger in opposition to the airpressure, and a pumping machine bodily carried by the frame and operablyconnected to the pneumatic cylinder. 7

2. An automatic pumping machine, including a support, a frame swinginglyattached to the support, a swingingly mounted pneumatic cylinder alsoconnected to the support at one side of the frame, a plunger mountedtherein and pivot-ally connected to one side of the frame for swingingthe frame, a spring for operating the plunger in opposition to the airpressure, a reciprocatory pump having its cylinder pivoted to one sideof the frame for swinging movement, a gear journaled in the frame, thepiston rod of the pump being connected to the gear, and a power drivengear journaled in the frame and operably engaging the first gear.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature inthe presence of two witnesses. I

GEORGE N. DOPKINS.

Witnesses:

, CooLnY,

W. F. CooLEY,'.I r.

five cents each, by addressing the Commissioner of Eatents,

Washington, D. G. i i

